Kallukondoru Pennu movie tells us the story of a nurse Sita ( Vijayashanti), who toils hard in the Gulf for the sake of her family consisting of two brothers and a sister. It is her family which is above everything for her and for this she even tries to forget the love that she has for Dr. Suresh (Suresh Gopi), who works with her in the same hospital and who too loves her sincerely.
At home in Kerala, her elder brother Haridasan (Murali) and his wife Ambika (Chithra) along with their children, her sister Raaji and her younger brother Venu (Dileep) all are leading a comfortable life, all with the money that she sends home. It is Sita herself who is consulted by all in all matters including the marriage of her sister, which is to take place with Mohanachandran ( Maniyan Pilla Raju), whose main demand as part of the dowry is a visa which could help him go to the Gulf and earn money though he has a good government job here.
It is when Sita starts for home in connection with her sister's marriage that war breaks out in the Gulf and for some days the whereabouts of Sita are unknown. Few days later, a photograph of Sita holding a child in her hands appears in the newspapers with the caption " A mother and child in a refugee camp". This sets tongues wagging and finally when Sita arrives, that too with a child in her hand, she finds that life has changed a lot for her.